EVP_RC2_CBC(3SSL) OpenSSL EVP_RC2_CBC(3SSL)
NAME
EVP_rc2_cbc, EVP_rc2_cfb, EVP_rc2_cfb64, EVP_rc2_ecb, EVP_rc2_ofb,
EVP_rc2_40_cbc, EVP_rc2_64_cbc - EVP RC2 cipher
SYNOPSIS
#include <openssl/evp.h>
const EVP_CIPHER *EVP_rc2_cbc(void);
const EVP_CIPHER *EVP_rc2_cfb(void);
const EVP_CIPHER *EVP_rc2_cfb64(void);
const EVP_CIPHER *EVP_rc2_ecb(void);
const EVP_CIPHER *EVP_rc2_ofb(void);
const EVP_CIPHER *EVP_rc2_40_cbc(void);
const EVP_CIPHER *EVP_rc2_64_cbc(void);
DESCRIPTION
The RC2 encryption algorithm for EVP.
EVP_rc2_cbc(), EVP_rc2_cfb(), EVP_rc2_cfb64(), EVP_rc2_ecb(),
EVP_rc2_ofb()
RC2 encryption algorithm in CBC, CFB, ECB and OFB modes
respectively. This is a variable key length cipher with an
additional parameter called "effective key bits" or "effective key
length". By default both are set to 128 bits.
EVP_rc2_40_cbc(), EVP_rc2_64_cbc()
RC2 algorithm in CBC mode with a default key length and effective
key length of 40 and 64 bits.
WARNING: these functions are obsolete. Their usage should be
replaced with the EVP_rc2_cbc(), EVP_CIPHER_CTX_set_key_length() and
EVP_CIPHER_CTX_ctrl() functions to set the key length and effective
key length.
NOTES
Developers should be aware of the negative performance implications of
calling these functions multiple times and should consider using
EVP_CIPHER_fetch(3) with EVP_CIPHER-RC2(7) instead. See "Performance"
in crypto(7) for further information.
RETURN VALUES
These functions return an EVP_CIPHER structure that contains the
implementation of the symmetric cipher. See EVP_CIPHER_meth_new(3) for
details of the EVP_CIPHER structure.
SEE ALSO
evp(7), EVP_EncryptInit(3), EVP_CIPHER_meth_new(3)
COPYRIGHT
Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
<https://www.openssl.org/source/license.html>.
3.5.7 2026-06-09 EVP_RC2_CBC(3SSL)
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